U.S. Route 377 - History

History

When US 377 was commissioned in 1930, US 77 connected Dallas, Texas with the north and south, but nearby Fort Worth lacked a direct northern connection. US 377 connected US 77 in Denton, Texas with US 81 in Fort Worth, Texas, creating a parallel route between Denton and Hillsboro, Texas, where US 81 met US 77. When the Interstate highway system was built, Interstate 35 paralleled the Dallas/Fort Worth split with routes I-35E through Dallas (along US 77) and I-35W through Fort Worth (along US 377 and US 81). The section of US 377 in Texas north of Denton was signed as SH 99 until 1968.